This wife wanted bigger tits, and asked her hubby for plastic surgery.
"What do you want bigger tits for?", the husband asked.
"Men love big tits... imagine the fun you could have!"
"Why don't you get a piece of tissue, and rub it in between them? That'll do the trick... no need for plastic surgery!"
"Don't be silly," she said, "Why should rubbing them with tissue give me bigger tits?"
"Well, it worked on your ass, didn't it?"